Mavi Koy
Island
Sedef Adası
40°28'N 28°06'E
Sedef Adası is an island on the Marmara coast. Its nearest charted neighbour is Halı Adası, 1.9 km away. Compiled from open data (OpenStreetMap); not navigation or route advice.
Audio note
Sedef Adası is an island on the Marmara coast. Its nearest charted neighbour is Halı Adası, 1.9 km away. Compiled from open data (OpenStreetMap); not navigation or route advice.
Mavi Koy is for cultural and geographic discovery. It is not nautical navigation, depth, weather, anchoring, or safety guidance.
Continue in the coastal atlas
Nearby heritage sites
The brown-sign heritage places closest to this coast.